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NASA’s first successful recovery of asteroid samples may reveal information about the origins of the universe

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The OSIRIS-REx capsule carrying samples from the asteroid Bennu lands in Utah on Sept. 24, 2023. Credit: NASA/Keegan Barber

The OSIRIS-REx mission is NASA’s first mission to collect samples from an asteroid—in this case 101955 Bennu—and return to Earth.

OSIRIS-REx is an acronym for Origins, Spectral Interpretation, Resource Identification, and Security—Regolith Explorer. The sealed capsule landed on Sept. 24 near Salt Lake City, Utah, a feat that was broadcast live by NASA.

My research investigates geologic samples in craters formed by meteorite collisions on Earth. These samples include materials that can be found on other like the moon, Mars and asteroids.

Asteroid samples

Planning for the OSIRIS-REx dates back to the 2010s, but the vision of a mission to bring back samples of an asteroid goes back even further.

The importance of planetary sample return missions was already being recognized in the 1960s, during the Apollo era, with the collection of several suites of lunar rock samples by astronauts.

In 1986, comet Halley’s close approach to Earth sparked an interest in the global scientific community to explore planetary objects like comets and asteroids. The European Space Agency’s Rosetta mission to comet 67P/Churyumov–Gerasimenko, which also performed fly-bys of two asteroids on the journey, and the Japan Aerospace Exploration Agency’s (JAXA) Hayabusa 1 and Hayabusa 2 missions to near-Earth asteroids (NEAs) are some of the important milestones that laid the foundation for exploratory missions to comets and asteroids.

Asteroid Bennu was chosen by NASA for the OSIRIS-REx mission after rigorous discussions that considered the scientific and engineering capabilities of the mission. Bennu is a near-Earth asteroid (NEA) that has been studied extensively by Earth-based telescopic observations in the last two decades, making it a strategic target for an exploratory mission.

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NASA’s live feed of OSIRIS-REx landing on Sept. 24.

Bennu is a carbonaceous asteroid—a class of asteroids that contain a high amount of carbon. It is also pristine, meaning that its material was created in the early stages of solar system formation and is preserved in an unaltered condition.

Mission significance

The question of how life came to be on Earth has fascinated people for a long time. Understanding the origin and history of the Earth can shed light on how life on Earth began.

Earth has a very dynamic environment, from a thick atmosphere to a very active biosphere and a vast expanse of water oceans. Most material on Earth that was present when the Earth first formed has been significantly modified by dynamic processes like weathering and erosion by elements like water or wind, active plate tectonics, active volcanism, as well as human activities such as mining or excavation.

Asteroids, on the other hand, have very little to no modification since their formation, going back to the time of the formation of our solar system.

Pieces of asteroids, and other planetary bodies such as the moon or Mars, land on the Earth’s surface, in the form of meteorites, almost every year. These meteorites are invaluable to our knowledge of the solar system, but most of these samples originate from unknown sources.

Known sources

A planned robotic mission to bring a sample from an asteroid ensures that the source of the material is known and can help correlate the information gained from previous studies of unknown samples, as well as remote observations of the asteroid to direct observations from collected samples.

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Watch NASA scientists reveal the asteroid sample for the first time.

Specifically, as asteroid Bennu is a carbonaceous asteroid, analyses of its samples can lead to a higher knowledge of pristine carbon in our solar system and improve our understanding of the role that asteroids may have played in the origin of life on Earth.

OSIRIS-REx was not the first global asteroid sample return mission. In 2010, the Japan Aerospace Exploration Agency completed the first asteroid sample return mission, Hayabusa 1, that brought back a sample weighing less than one gram from the asteroid Itokawa. More recently, in 2020, Hayabusa 2 returned from asteroid 162173 Ryugu with a 5.4g soil sample.

The Hayabusa 2 mission has already resulted in research revealing the nature of some of the oldest known materials in our solar system.

A continued search

The OSIRIS-REx mission continues to explore space. The spacecraft has been rebranded as OSIRIS-APEX, and is currently on its way to the asteroid Apophis on a nearly six-year long journey to conduct a fly-by of the .

Innovations required for the exploration of space and planetary bodies have historically been shown to benefit life on Earth.

For example, satellite technology, a concept that we depend so heavily upon in our daily lives—from navigation systems as well as or monitoring of natural landforms and ecosystems—is a product of space exploration.

As we attempt to venture deeper into the outer space, we can expect to see more creative technological advancements that will eventually help solve problems on Earth.

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Here’s how Helene and other storms dumped a whopping 40 trillion gallons of rain on the South

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More than 40 trillion gallons of rain drenched the Southeast United States in the last week from Hurricane Helene and a run-of-the-mill rainstorm that sloshed in ahead of it — an unheard of amount of water that has stunned experts.

That’s enough to fill the Dallas Cowboys’ stadium 51,000 times, or Lake Tahoe just once. If it was concentrated just on the state of North Carolina that much water would be 3.5 feet deep (more than 1 meter). It’s enough to fill more than 60 million Olympic-size swimming pools.

“That’s an astronomical amount of precipitation,” said Ed Clark, head of the National Oceanic and Atmospheric Administration’s National Water Center in Tuscaloosa, Alabama. “I have not seen something in my 25 years of working at the weather service that is this geographically large of an extent and the sheer volume of water that fell from the sky.”

The flood damage from the rain is apocalyptic, meteorologists said. More than 100 people are dead, according to officials.

Private meteorologist Ryan Maue, a former NOAA chief scientist, calculated the amount of rain, using precipitation measurements made in 2.5-mile-by-2.5 mile grids as measured by satellites and ground observations. He came up with 40 trillion gallons through Sunday for the eastern United States, with 20 trillion gallons of that hitting just Georgia, Tennessee, the Carolinas and Florida from Hurricane Helene.

Clark did the calculations independently and said the 40 trillion gallon figure (151 trillion liters) is about right and, if anything, conservative. Maue said maybe 1 to 2 trillion more gallons of rain had fallen, much if it in Virginia, since his calculations.

Clark, who spends much of his work on issues of shrinking western water supplies, said to put the amount of rain in perspective, it’s more than twice the combined amount of water stored by two key Colorado River basin reservoirs: Lake Powell and Lake Mead.

Several meteorologists said this was a combination of two, maybe three storm systems. Before Helene struck, rain had fallen heavily for days because a low pressure system had “cut off” from the jet stream — which moves weather systems along west to east — and stalled over the Southeast. That funneled plenty of warm water from the Gulf of Mexico. And a storm that fell just short of named status parked along North Carolina’s Atlantic coast, dumping as much as 20 inches of rain, said North Carolina state climatologist Kathie Dello.

Then add Helene, one of the largest storms in the last couple decades and one that held plenty of rain because it was young and moved fast before it hit the Appalachians, said University of Albany hurricane expert Kristen Corbosiero.

“It was not just a perfect storm, but it was a combination of multiple storms that that led to the enormous amount of rain,” Maue said. “That collected at high elevation, we’re talking 3,000 to 6000 feet. And when you drop trillions of gallons on a mountain, that has to go down.”

The fact that these storms hit the mountains made everything worse, and not just because of runoff. The interaction between the mountains and the storm systems wrings more moisture out of the air, Clark, Maue and Corbosiero said.

North Carolina weather officials said their top measurement total was 31.33 inches in the tiny town of Busick. Mount Mitchell also got more than 2 feet of rainfall.

Before 2017’s Hurricane Harvey, “I said to our colleagues, you know, I never thought in my career that we would measure rainfall in feet,” Clark said. “And after Harvey, Florence, the more isolated events in eastern Kentucky, portions of South Dakota. We’re seeing events year in and year out where we are measuring rainfall in feet.”

Storms are getting wetter as the climate change s, said Corbosiero and Dello. A basic law of physics says the air holds nearly 4% more moisture for every degree Fahrenheit warmer (7% for every degree Celsius) and the world has warmed more than 2 degrees (1.2 degrees Celsius) since pre-industrial times.

Corbosiero said meteorologists are vigorously debating how much of Helene is due to worsening climate change and how much is random.

For Dello, the “fingerprints of climate change” were clear.

“We’ve seen tropical storm impacts in western North Carolina. But these storms are wetter and these storms are warmer. And there would have been a time when a tropical storm would have been heading toward North Carolina and would have caused some rain and some damage, but not apocalyptic destruction. ”

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Follow AP’s climate coverage at https://apnews.com/hub/climate

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Follow Seth Borenstein on Twitter at @borenbears

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Associated Press climate and environmental coverage receives support from several private foundations. See more about AP’s climate initiative here. The AP is solely responsible for all content.

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‘Big Sam’: Paleontologists unearth giant skull of Pachyrhinosaurus in Alberta

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It’s a dinosaur that roamed Alberta’s badlands more than 70 million years ago, sporting a big, bumpy, bony head the size of a baby elephant.

On Wednesday, paleontologists near Grande Prairie pulled its 272-kilogram skull from the ground.

They call it “Big Sam.”

The adult Pachyrhinosaurus is the second plant-eating dinosaur to be unearthed from a dense bonebed belonging to a herd that died together on the edge of a valley that now sits 450 kilometres northwest of Edmonton.

It didn’t die alone.

“We have hundreds of juvenile bones in the bonebed, so we know that there are many babies and some adults among all of the big adults,” Emily Bamforth, a paleontologist with the nearby Philip J. Currie Dinosaur Museum, said in an interview on the way to the dig site.

She described the horned Pachyrhinosaurus as “the smaller, older cousin of the triceratops.”

“This species of dinosaur is endemic to the Grand Prairie area, so it’s found here and nowhere else in the world. They are … kind of about the size of an Indian elephant and a rhino,” she added.

The head alone, she said, is about the size of a baby elephant.

The discovery was a long time coming.

The bonebed was first discovered by a high school teacher out for a walk about 50 years ago. It took the teacher a decade to get anyone from southern Alberta to come to take a look.

“At the time, sort of in the ’70s and ’80s, paleontology in northern Alberta was virtually unknown,” said Bamforth.

When paleontogists eventually got to the site, Bamforth said, they learned “it’s actually one of the densest dinosaur bonebeds in North America.”

“It contains about 100 to 300 bones per square metre,” she said.

Paleontologists have been at the site sporadically ever since, combing through bones belonging to turtles, dinosaurs and lizards. Sixteen years ago, they discovered a large skull of an approximately 30-year-old Pachyrhinosaurus, which is now at the museum.

About a year ago, they found the second adult: Big Sam.

Bamforth said both dinosaurs are believed to have been the elders in the herd.

“Their distinguishing feature is that, instead of having a horn on their nose like a triceratops, they had this big, bony bump called a boss. And they have big, bony bumps over their eyes as well,” she said.

“It makes them look a little strange. It’s the one dinosaur that if you find it, it’s the only possible thing it can be.”

The genders of the two adults are unknown.

Bamforth said the extraction was difficult because Big Sam was intertwined in a cluster of about 300 other bones.

The skull was found upside down, “as if the animal was lying on its back,” but was well preserved, she said.

She said the excavation process involved putting plaster on the skull and wooden planks around if for stability. From there, it was lifted out — very carefully — with a crane, and was to be shipped on a trolley to the museum for study.

“I have extracted skulls in the past. This is probably the biggest one I’ve ever done though,” said Bamforth.

“It’s pretty exciting.”

This report by The Canadian Press was first published Sept. 25, 2024.

The Canadian Press. All rights reserved.

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The ancient jar smashed by a 4-year-old is back on display at an Israeli museum after repair

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TEL AVIV, Israel (AP) — A rare Bronze-Era jar accidentally smashed by a 4-year-old visiting a museum was back on display Wednesday after restoration experts were able to carefully piece the artifact back together.

Last month, a family from northern Israel was visiting the museum when their youngest son tipped over the jar, which smashed into pieces.

Alex Geller, the boy’s father, said his son — the youngest of three — is exceptionally curious, and that the moment he heard the crash, “please let that not be my child” was the first thought that raced through his head.

The jar has been on display at the Hecht Museum in Haifa for 35 years. It was one of the only containers of its size and from that period still complete when it was discovered.

The Bronze Age jar is one of many artifacts exhibited out in the open, part of the Hecht Museum’s vision of letting visitors explore history without glass barriers, said Inbal Rivlin, the director of the museum, which is associated with Haifa University in northern Israel.

It was likely used to hold wine or oil, and dates back to between 2200 and 1500 B.C.

Rivlin and the museum decided to turn the moment, which captured international attention, into a teaching moment, inviting the Geller family back for a special visit and hands-on activity to illustrate the restoration process.

Rivlin added that the incident provided a welcome distraction from the ongoing war in Gaza. “Well, he’s just a kid. So I think that somehow it touches the heart of the people in Israel and around the world,“ said Rivlin.

Roee Shafir, a restoration expert at the museum, said the repairs would be fairly simple, as the pieces were from a single, complete jar. Archaeologists often face the more daunting task of sifting through piles of shards from multiple objects and trying to piece them together.

Experts used 3D technology, hi-resolution videos, and special glue to painstakingly reconstruct the large jar.

Less than two weeks after it broke, the jar went back on display at the museum. The gluing process left small hairline cracks, and a few pieces are missing, but the jar’s impressive size remains.

The only noticeable difference in the exhibit was a new sign reading “please don’t touch.”

The Canadian Press. All rights reserved.

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